package aiprompts

import (
	"strings"
	"testing"
)

func TestDeriveDescriptionFormulaFromLegacyParts(t *testing.T) {
	t.Parallel()
	legacy := `Ustvari nov opis

GPT predloga:
<name>{Napiši novo ime izdelka po formuli: "znamka", "tip izdelka lowercase". Ne uporabljaj vejic.}</name>
<metaDescription>{Najprej napiši Novo_ime_izdelka in potem nadaljuj dokler nisi zapisal 140 znakov}</metaDescription>

<H2>{Napiši Novo ime izdelka in izpostavi en benefit}</H2>
<p>{Napiši odstavek, ki je dolg 100 besed.}</p>
<b>{Tehnične specifikacije}</b><ul><li>{Napiši 3-10 tehničnih specifikacij v alinejah}</li></ul>`

	parts := ParseLegacyCombinedEnhancePrompt(legacy)
	if !parts.WasLegacy {
		t.Fatal("expected legacy parse")
	}
	f := DeriveDescriptionFormulaFromLegacyParts(parts)
	if strings.TrimSpace(f.MetaDescription) == "" || !strings.Contains(f.MetaDescription, "140") {
		t.Fatalf("metaDescription=%q", f.MetaDescription)
	}
	if len(f.Sections) < 3 {
		t.Fatalf("want >=3 sections, got %#v", f.Sections)
	}
	if f.Sections[0].Type != "h2" {
		t.Fatalf("first section should be h2 (document order), got %#v", f.Sections[0])
	}
	last := f.Sections[len(f.Sections)-1]
	if last.Type != "ul" {
		t.Fatalf("last section should be ul specs, got %#v", last)
	}
	var sawH2, sawP, sawUL bool
	for _, s := range f.Sections {
		switch s.Type {
		case "h2":
			sawH2 = true
		case "p":
			sawP = true
		case "ul":
			sawUL = true
		}
	}
	if !sawH2 || !sawP || !sawUL {
		t.Fatalf("missing section types: %#v", f.Sections)
	}
	raw := DeriveDescriptionTemplateJSON(parts)
	if raw == "" || DescriptionTemplateNeedsRepair([]byte(raw)) {
		t.Fatalf("derived template should be OK: %s", raw)
	}
}